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Add the polynomials.

$\displaystyle{\left({-6x^{2}-2x}\right)+\left({2x^{2}+3x}\right)}$

Solution

We combine like terms as follows

$\begin{aligned} \left({-6x^{2}-2x}\right)+\left({2x^{2}+3x}\right)& = \left({2x^{2}-6x^{2}} \right)+\left({3x-2x} \right)\\ & = {-4x^{2}+x} \end{aligned}$

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